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Marina P.
$45/hr
100% Job Success
$700K+ earned
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🚀 AVAILABLE TO START ASAP ⚡ Top 3% of Talent in Mobile & AI-Powered Product Development 🤖 AI-Driven Mobile Engineer Building Apps That Scale Beyond MVP ⚡ AI-Assisted Engineering for Faster Delivery & Higher Product Quality 👉 WHAT YOU GET ✔️ Full Stack Mobile Developer - 22+ years experience, 2000+ builds, $700K+ client impact, end-to-end development ownership. ✔️ React Native Mobile App & Flutter Developer - 100+ interfaces, 18–27% user engagement lift, clarity and ultimate trust. ✔️ Mobile Application Developer - 30–40% faster launch cycles, cleaner UI/UX, stronger user retention across SaaS Mobile App ecosystems. 👉 ACHIEVEMENTS ✔️ 22+ years, 40,000+ hours, 2000+ products delivered as a full stack mobile developer, mobile app developer, and senior full stack developer ai and mobile application developer workflows. ✔️ $700K+ client impact, $900K+ direct revenue, 200+ successful MVPs, £11M annual business volume generated as a top-performing mobile app development expert. ✔️ 100,000+ active users where a custom react native mobile app developer execution lifted repeat engagement by 27% on a popular festival companion app. ✔️ 10,000+ users in Healthcare Platform and HIPAA-compliant systems where mobile application developer architecture cut clinical data friction by 40% using an intuitive doctor directory website interface. ✔️ 2,423 completed mobile orders, 34% faster handling in E-commerce Marketplace App and Fintech Platform deployments as a full stack developer. ✔️ 90% faster background sync, 80% lower crash workload, 65% fewer endpoint errors through API Integration, automated Stripe integration, and Flutter developer performance fixes. ✔️ 5–8 weeks shorter Startup MVP to Pilot Launch, 35% fewer critical production bugs through legacy code refactoring and clean continuous development pipelines. 👉 WHERE I DELIVER ✔️ As a mobile app developer - 200+ systems with pixel-perfect mobile app design, automated push notifications, and UI/UX design and development across SaaS Mobile App and Enterprise Mobile App architectures. ✔️ As an experienced mobile app developer - 15+ years of cross-platform engineering, delivering 30–40% faster iteration cycles for teams that need both iOS and Android apps from scratch. ✔️ As a full stack developer - 50+ end-to-end mobile + web platform setups with secure Node.js backend architecture, REST API deployment, and database scaling from Early-Stage MVP to live production. ✔️ As a react native mobile app specialist - building responsive mobile app react native mobile components for cross-platform app deployment, ensuring native-like feel across both iOS and Android. ✔️ As an AI App developer & AI Developer - leveraging cutting-edge ai platform development, ai development, and ai mobile development to build smart assistants, audio transcription apps, and image/vision processing products. ✔️ As a backend developer and javascript developer - writing highly maintainable server code in Node.js, Express, NestJS, and PHP (Laravel) with robust database integration via MongoDB, PostgreSQL, and Firebase/Supabase. ✔️ As a full stack mobile developer - driving ongoing support and maintenance, optimizing systems to fix bugs and improve performance with a dedicated team mindset. 👉 INDUSTRY IMPACT ✔️ Marketplace App & E-commerce - thousands of item listings, 20%+ higher checkout conversion as a mobile application developer and full stack developer. ✔️ Healthcare Platform & Telehealth - clinic workflows, 25%+ better data processing security as a senior mobile app developer. ✔️ AI Mobile App & AI Platform Development - OpenAI & Claude API smart integrations, automated recommendations, and custom conversational interfaces as an AI App developer. ✔️ Fintech Platform & SaaS Mobile App - secure in-app purchases, mobile subscriptions, multi-role access control, and seamless Stripe payment integrations. ✔️ Enterprise Mobile App & Workflow Automation - customized real-time chat, location-tracking (GPS/Google Maps), and mobile app + admin panel management tools. 👉 HOW I BUILD ✔️ 22+ years as a mobile app developer: built with cross-platform and native ecosystems using Swift, Kotlin, Java, Flutter, React Native, and native app infrastructure optimized for smartphone form factors. ✔️ 15+ systems as a full stack developer: powered by Node.js, Express, NestJS, PHP (Laravel), TypeScript, REST API protocols, GraphQL, Firebase, Supabase, Firestore, PostgreSQL, and MongoDB. ✔️ 40+ products engineered with a dedicated team mindset: utilizing clean Git version control, secure AWS cloud envicloud environments, Docker containers, and rigorous usability testing to publish app to App Store and Google Play smoothly. Looking for an elite Senior Mobile & Full Stack Developer who can build an app from scratch, create a mobile application with premium UX, or handle complex product development for long-term collaboration? Let's connect! Send an invite and let’s talk about your project goals. ☎️
Onix-Systems, LLC
Associated with
Onix-Systems, LLC
$30M+
earned
Sahil S.
$40/hr
97% Job Success
$100K+ earned
Available now
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Top Rated Full-Stack Developer with 10+ years of experience building Shopify, WordPress, Laravel and React applications. I've completed 160+ projects and help businesses launch scalable eCommerce platforms, SaaS products, marketplaces, booking systems and custom web applications for global clients. I work end-to-end, from Figma UI/UX design → architecture → development → launch. I don’t just code screens; I design conversion-focused, scalable systems aligned with real business logic. 𝙏𝙧𝙪𝙨𝙩𝙚𝙙 𝙗𝙮 𝙂𝙡𝙤𝙗𝙖𝙡 𝘾𝙡𝙞𝙚𝙣𝙩𝙨 | 𝘾𝙤𝙣𝙨𝙞𝙨𝙩𝙚𝙣𝙩 𝙃𝙞𝙜𝙝-𝙌𝙪𝙖𝙡𝙞𝙩𝙮 𝙒𝙤𝙧𝙠 | 𝙎𝙩𝙧𝙤𝙣𝙜 𝙏𝙚𝙘𝙝𝙣𝙞𝙘𝙖𝙡 𝙇𝙚𝙖𝙙𝙚𝙧𝙨𝙝𝙞𝙥 | 𝙊𝙣-𝙏𝙞𝙢𝙚 𝘿𝙚𝙡𝙞𝙫𝙚𝙧𝙮 As a Senior Full-Stack Developer & Technical Architect , I don’t just “code” , I understand business logic, sales flow, scalability, and long-term stability. With 10+ years of experience delivering high-end websites for global brands, I build platforms engineered for performance and growth. 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: Figma UI/UX Design (Web apps, SaaS dashboards, marketplaces, developer-ready design systems) - WordPress & WooCommerce (custom themes, plugins, ACF Pro, Kadence, Elementor) - Laravel + PHP backend systems - Shopify Development + 3D Configurators & Custom Product Builders - Directory & Marketplace Platforms (Directorist expert) - Booking Systems (vendors, rentals, service flows) - Stripe Setup Specialist, Payment Integrations, API & Webhooks - Laravel SaaS, CRMs, dashboards, membership systems - UI/UX for Web Apps, Dashboards & SaaS (Figma expertise) - Stripe Connect (split payments, subscriptions, automation) - Speed, Security & SEO (90+ PageSpeed, Core Web Vitals) - API Integrations (HubSpot, Twilio, Google Maps, Airtable, Zapier) 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞𝐝 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬: - Directory/Listing Platforms - Booking Platforms - Multi-Vendor Marketplaces - E-commerce Stores (Shopify & WooCommerce) - Learning Platforms (LMS) - SaaS MVPs & Custom Web Apps 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤: Design: Figma (UI systems, components, handoff-ready designs) - Languages: PHP, JavaScript - Backend: Laravel, REST APIs, MySQL - Frontend: HTML5, SCSS, jQuery, Bootstrap, Laravel, Filament, React - CMS: WordPress, WooCommerce, Directorist, BuddyBoss, ACF Pro - E-commerce: Shopify, Shopify Plus - Payments: Stripe Connect, PayPal, Razorpay - Automation: Zapier, Make, Webhooks - Servers: Cloudways, cPanel, VPS, AWS, Cloudflare, Azure 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞: - Senior Tech Lead mindset – scalable architecture + clear planning - Clean, reliable and well-structured code - Strong communication & long-term partnership approach - Problem solver who understands product + business, not just coding 𝐋𝐞𝐭’𝐬 𝐁𝐮𝐢𝐥𝐝 𝐈𝐭 𝐑𝐢𝐠𝐡𝐭 Send me a message with your goals and I’ll share a technical strategy + timeline + milestone plan within 24 hours WordPress , Laravel , PHP , WooCommerce , Directorist, API Integration , MySQL , React , Shopify , UI/UX, Figma Expert
Neebha Web Services Private Limited
Associated with
Neebha Web Services Private Limited
$30K+
earned
Slavik C.
$60/hr
100% Job Success
$500K+ earned
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Slavik C. has worked .
🟢$1M+ earned, 100% job success. Full Stack Developer with business mindset & clear communication. I help founders and teams turn an idea or a prototype into a production SaaS platform that actually ships and gets used. ❇️Projects I'm proud of: 💡 An adaptive SAT/ACT preparation platform built with React, Node.js, and Python, powered by the OpenAI API and developed with input from Stanford PhDs - it turns raw practice scores into a learning path that adjusts after every session. 💡A RAG-powered document search tool, built with Python and LangChain and connected straight into SharePoint and Dynamics 365, that indexed 300,000+ internal files and cut research time by 75%. 💡A HIPAA-compliant AI note-taking tool, built with Node.js and Whisper on a secure cloud backend, that turns a psychiatrist's spoken session straight into a structured clinical note - saving hours of their paperwork time daily. 💡A voice-controlled drive-thru ordering system, built with React Native and Node.js, now running in real locations and cutting order processing time by 30%. 💡A GDPR-first Zendesk AI copilot, built with Node.js and the OpenAI API with a custom data-scrubbing pipeline, that drafts agent replies from ticket history while stripping sensitive customer data before it ever touches the AI model. ✅How I work with clients I'm direct and to the point - you'll get plain answers on scope, cost, and timeline, and if something in your plan won't work, I'll say so early, not after the invoice. I think about your project with a business mindset first: what needs to ship, what it needs to earn or save you, and what can wait - not just what's technically fun to build. No jargon dumps, no vague "it's in progress" updates. Full Stack Development Across Every Stack As a Full Stack Developer Python and Python Full Stack Developer, I build AI backends with Django, FastAPI, and Flask alongside React frontends. As a Full Stack Developer React and Full Stack Developer React Node, my default stack for new SaaS builds is React/Next.js + Node.js and TypeScript. As a Full Stack Developer AI, I fold LLM and RAG features directly into that same codebase instead of bolting them on as a separate service - working with OpenAI, Anthropic Claude, Gemini, Mistral, and Llama models, orchestrated through LangChain, with vector databases like Pinecone and Elastic Search grounding responses in real data instead of guesses. Where a project needs voice, I bring in Whisper, ElevenLabs, and VAPI for speech-to-text and real-time voice AI, and I build autonomous AI agents and multi-step workflows using tools like Hugging Face and PyTorch when custom model work is called for. Most of what I build mixes full-stack web with AI: RAG systems, agents, chatbots, voice apps. For projects on a different foundation, I work as a Full Stack developer PHP and Full Stack Developer Laravel on legacy systems or client-mandated stacks, and as a WordPress Full Stack developer when a CMS site needs custom functionality beyond themes and plugins. I've also worked as a Webflow developer for fast, no-CMS-overhead marketing sites and landing pages. Whether you need a Full Stack Web Developer for a browser-first product or a Full Stack app developer for something React Native-based on mobile (with Swift and Kotlin where a fully native module is needed), I own the project front-to-back - design, build, ship, and support. On the data and infrastructure side, I work with PostgreSQL, MongoDB, MySQL, and Supabase, deploy on AWS, Microsoft Azure, and Google Cloud Platform, and build with compliance in mind from day one - HIPAA, GDPR, SOC 2, and PCI-DSS - for HealthTech, EdTech, and enterprise SaaS clients who can't afford to get that part wrong. 🟢If your project needs someone who'll own it end to end, send over what you've got - idea, spec, or prototype - and let's see if we're a fit.
Pragmatic
Associated with
Pragmatic
$1M+
earned
Anand J.
$20/hr
100% Job Success
$200K+ earned
Available now
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With $200K+ earned on Upwork, 100% Job Success, and Top-Rated Plus status, I focus on outcomes, ownership, and long-term product success. ⚡ Need a reliable developer to build your SaaS, MVP, marketplace, or AI-powered product — without constant handholding? That’s exactly what I help with. Being a Senior Full Stack Developer & Product Architect with 12+ years of experience helping founders, startups, and growing businesses turn ideas into scalable web platforms. From startup MVPs to complex SaaS systems, ecommerce marketplaces, CRMs, internal tools, and AI-enabled platforms, I build products that launch fast, run reliably, and scale cleanly. 🔑 What I actually deliver (not just buzzwords): 🔹 Startup MVP Development — build investor-ready products fast with clean architecture and room to scale 🔹 SaaS Platforms — subscriptions, dashboards, workflows, admin panels, user roles, billing systems 🔹 Full Stack Web Apps — React, Next.js, Node.js, Laravel, TypeScript, PHP, APIs, cloud deployment 🔹 AI-Powered Features — chatbots, OCR, automation tools, recommendation systems, reporting intelligence 🔹 Marketplace & Ecommerce Systems — multi-vendor platforms, product management, checkout, operations flows. 🔹 Legacy System Rescue — upgrade unstable codebases, improve speed, modernize architecture 🔹 CTO-Friendly Code — maintainable systems your internal developers can easily extend 📦 PROVEN IN REAL BUSINESS SYSTEMS 🛒 Print-on-Demand Ecommerce Platform: Built a custom ecommerce platform with product personalization, order workflows, and scalable admin operations — delivered over long-term engagement worth $12K+. 🏪 Multi-Vendor Marketplace Platform: Developed a marketplace system with vendor management, catalog flows, payments, dashboards, and scalable backend logic. 🎓 LMS / Education SaaS Platform: Built learning systems with user roles, content delivery, assessments, subscriptions, and progress workflows. 🏠 Real Estate / Property Platforms: Delivered listing portals, booking systems, property management tools, and analytics-driven dashboards. 🤖 AI + Automation Solutions: Integrated smart workflows, document processing, business automation logic, and internal tools that reduce manual work. 🔧 Existing Product Takeovers: Frequently hired to improve ongoing products, fix technical debt, stabilize codebases, and add new features quickly. 🛠️ TECH STACK ⚙️ Frontend: React.js, Next.js, Vue.js, AngularJS, JavaScript, TypeScript ⚙️ Backend: Node.js, Laravel, PHP, Python ⚙️ Databases: MySQL, PostgreSQL, MongoDB ⚙️ Cloud / DevOps: AWS, VPS, CI/CD, Git ⚙️ Integrations: Stripe, PayPal, REST APIs, GraphQL, third-party SaaS tools ⚙️ AI Tools: OpenAI APIs, OCR workflows, automation systems, data intelligence 💬 WHO I WORK BEST WITH ✅ Founders who need to launch MVPs quickly ✅ Startups building SaaS products that must scale ✅ Businesses replacing spreadsheets/manual operations with software ✅ Companies needing a dependable senior developer to join existing systems ✅ Teams wanting AI features added safely into real products ✅ Agencies needing a reliable technical delivery partner 🤝 WHY CLIENTS KEEP WORKING WITH ME ✔ Strong requirement understanding before development starts ✔ Clear communication and dependable updates ✔ Clean code with long-term maintainability ✔ Product thinking, not task-only execution ✔ Fast progress without compromising quality 📩 If you need a trusted senior developer who can understand the business goal and build the right solution, invite me to your job.
Chapter Two Four Seven Infotech Pvt Ltd
Associated with
Chapter Two Four Seven Infotech Pvt Ltd
$1M+
earned
Prateek K.
$20/hr
99% Job Success
$1M+ earned
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I help businesses automate operations and future-proof technology with high-performance AI and full-stack solutions. Trusted by startups and enterprises to deliver secure, scalable applications that drive measurable growth. What I Deliver: - AI & Automation: Agentic AI, intelligent chatbots, and workflow automation using LLM/GPT integrations. - Voice AI Agents: Low-latency inbound/outbound calling agents, virtual receptionists, and CRM-integrated IVR systems. - Full-Stack Development: End-to-end solutions (MVP to Enterprise) using Python, Node.js, React, and Cloud (AWS/Azure). - Industry Solutions: Tailored systems for Workforce Management, Supply Chain, Healthcare (HIPAA), Real Estate, and Retail. Why Work With Me: - Proven Expertise: Deep experience in Generative AI, Multi-agent orchestration, and Mobile-First apps. - Scalable Architecture: Cloud-native designs ensuring security and performance. - Business Impact: Focus on ROI, efficiency, and operational visibility.
smartData Inc Agency
Associated with
smartData Inc Agency
$70M+
earned
chintan P.
$30/hr
100% Job Success
$60K+ earned
Available now
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chintan P. has worked .
120+ accounting and ERP integrations delivered. My biggest? A unified 6-platform accounting sync (QuickBooks Online, QuickBooks Desktop, Xero, NetSuite, Sage Intacct, Dynamics 365 Business Central) for Fraxion, an eProcurement SaaS used by 200,000+ users across 1,000+ companies. If your system needs to talk to an accounting or ERP platform, I have done it before. What I build: - Custom API integrations between your app/platform and accounting systems (QuickBooks, Xero, NetSuite, Sage, Dynamics 365, Zoho Books) - eCommerce-to-accounting sync (Shopify, WooCommerce, Linnworks to QuickBooks/Xero) - Invoice, payment, and financial data automation - SaaS product integrations for companies that want to offer accounting connectivity to their users - CRM-to-accounting workflows (HubSpot, Salesforce, Pipedrive to QuickBooks/Xero/NetSuite) Recent projects: - Cut manual data entry by 75% for a UK skincare brand by integrating Shopify, WooCommerce, HubSpot, Linnworks, Xero, and Stripe into one centralized platform - Built NetSuite integration for Calxa, an Australian budgeting software used by 1,300+ businesses - Automated multi-level tax reporting for a $5M IT company using QuickBooks Desktop - Turned an Excel-based nonprofit finance workflow into a cloud SaaS app with QuickBooks Online integration in 9 months - 57+ detailed case studies available in my portfolio below How I work: - Free 1-hour consultation on your integration challenge - Detailed project estimate within 24 hours - Fixed-scope or hourly, your choice - Full documentation and source code handover included - Post-launch support available Tech stack: Node.js, MERN, Python, .NET Core, PHP | AWS, Azure, GCP | n8n, Zapier, Make, Power Automate Platforms I integrate: Accounting: QuickBooks (Online and Desktop), Xero, Zoho Books, MYOB, Sage (50/100/200/300/Intacct/X3), Wave, FreshBooks ERP: NetSuite, SAP, Microsoft Dynamics 365 / Business Central, Acumatica, Odoo eCommerce: Shopify, WooCommerce, Magento, BigCommerce, Linnworks, Amazon, eBay CRM: Salesforce, HubSpot, Zoho CRM, Pipedrive I am the founder of Satva Solutions, a 15+ year integration-focused development firm. I personally lead every project from scoping through delivery. Send me a message or invite me to your job.
Basit Z.
$35/hr
100% Job Success
$10K+ earned
Available now
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I'm Basit . A Top Rated Flutter and React Native developer with 7+ years building cross-platform iOS and Android apps, AI-powered SaaS platforms, and BLE-connected IoT apps that ship, scale, and generate real results. 17+ live apps shipped. 10M+ users reached. $8.5M+ in startup funding secured through AI-powered MVPs. 100% Job Success Score. If you need a mobile app developer, AI engineer, or full stack developer who delivers without excuses — keep reading. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📱 MOBILE APP DEVELOPMENT ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ Flutter Developer — cross-platform iOS & Android from a single codebase ✅ React Native Developer — cross-platform mobile apps ✅ Native iOS — Swift, SwiftUI ✅ Native Android — Kotlin, Jetpack Compose ✅ Offline-first architecture, real-time sync, WebSockets ✅ In-app purchases, Stripe, PayPal & payment gateway integration ✅ App Store & Google Play deployment, TestFlight, Fastlane CI/CD ✅ Pixel-perfect UI/UX from Figma — Redux Toolkit, Zustand, Bloc, TanStack Query ✅ Push notifications, deep linking, camera, video, audio & chat Apps shipped: → Opty Sleep — AI-powered sleep optimization (health & wellness) → Chaser the Network — social platform scaled to thousands of active users → Medalite — BLE-connected LED light therapy mask controller (Flutter + ESP32) → Race Command — real-time motorsports command app (in progress) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔵 BLE & IoT MOBILE APPS (Rare Skill Set) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Most mobile developers cannot build apps that talk to hardware. I can. ✅ Bluetooth Low Energy (BLE) SDK integration in Flutter & React Native ✅ ESP32 firmware communication via BLE ✅ NFC, AR, and real-time IoT monitoring & control apps ✅ Hardware-connected medtech and wellness apps ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🤖 AI ENGINEER & GENERATIVE AI DEVELOPER ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ ChatGPT integration — GPT-4, GPT-4o API ✅ Generative AI app development ✅ AI chatbot development — customer support, internal tools, SaaS ✅ OpenAI, Claude (Anthropic), Gemini & Groq API integration ✅ Prompt engineering & fine-tuning ✅ LangChain & LlamaIndex — RAG pipelines, AI agents, vector search ✅ pgvector & Pinecone for semantic vector databases ✅ AI automation — n8n, Make, Zapier ✅ AI-powered MVP development for funded startups ✅ No-code AI tools — Cursor AI, v0 by Vercel, Bolt New, Lovable ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🌐 FULL STACK DEVELOPMENT ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Frontend: React.js, Next.js 15 (App Router, SSR/SSG, Server Components), TypeScript, Angular, Vue.js, Nuxt.js, Tailwind CSS, Framer Motion Backend: Node.js, NestJS, Express.js, FastAPI, Django, Flask, Java Spring Boot, Laravel APIs: RESTful API, GraphQL with Apollo, WebSockets with Socket IO, event-driven microservices Databases: PostgreSQL (pgvector), MongoDB, Firebase (Realtime DB + Firestore), MySQL, Redis, SQLite Cloud & DevOps: AWS (EC2, S3, Lambda, SageMaker), GCP, Azure, Docker, Kubernetes, GitHub Actions, Jenkins CI/CD ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🏭 INDUSTRIES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Healthcare & MedTech | Fintech | IoT & Firmware | E-commerce | Real Estate | Entertainment | Fitness & Wellness | Social Networking | EdTech | Automotive | SaaS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💬 WHAT CLIENTS SAY ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ "Basit is always running in the background and available for questions. Each week I receive a memo of what was accomplished, which always aligns with project objectives." ⭐⭐⭐⭐⭐ FIFA World Cup App | $21K+ contract | 833+ hours "He delivered our React Native migration and feature updates in under 24 hours. I'd happily hire him again." ⭐⭐⭐⭐⭐ Verified Upwork Client ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🤝 HOW I WORK ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ → Milestone plan agreed before any code is written → Weekly written memos — what's done, what's next, what needs your input → 48-hour response guarantee — I never go silent mid-project → Billing breakdowns at every milestone — zero invoice surprises → 30+ hours/week availability | Fluent English ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🚀 LET'S BUILD ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Startup building an AI-powered MVP? Business scaling a mobile platform? Hardware company that needs a BLE-connected app? Click Invite to Job — let's talk.
Jacob R.
$175/hr
100% Job Success
Available now
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Jacob R. has worked .
I step in when products stall, AI initiatives fail to deliver, or teams need senior technical leadership to reach the next stage. I’m a Fractional CTO, AI Systems Architect, and SaaS builder with 15+ years of experience designing, shipping, and scaling production software that actually works. I write code when it matters, and I make high-leverage technical decisions that unlock growth, reduce risk, and create momentum. Most of my clients come to me after one of these situations: - We hired developers, but no one is owning the system or thinking end-to-end - Our AI project sounded great, but it never delivered real business value - The product works today, but it won’t scale and we can feel it - We need a senior technical decision-maker, not another task executor That’s where I do my best work. I operate like a founder, not a task-taker. I translate business goals into clean architecture, scalable systems, and pragmatic AI solutions that generate revenue, reduce operational load, and hold up in production. What I specialize in: - Fractional CTO and technical leadership for growth-stage companies - AI systems and LLM agents that solve real problems, not hype demos - SaaS architecture and platform design from MVP to scale - High-stakes technical decision making, including what not to build and why - Unblocking teams and products that are stuck at the next stage Recent work includes: - Designing AI-driven platforms that moved from prototype to production - Re-architecting SaaS systems to support scale without full rewrites - Leading engineering teams through complex rebuilds and pivots - Acting as the technical partner for founders who need clarity and execution My background spans engineering, product, and operations. I built my first company at 17 and have since launched and scaled multiple SaaS products, led teams of 20+, and advised both early-stage startups and established organizations. Earlier in my career I was deeply hands-on; today my focus is architecture, AI systems, and technical leadership where judgment matters more than velocity. When we work together, you get: - A senior technical partner who sees the full picture - Clear communication and decisive execution - Systems designed for scale, not rewrites - Practical AI that delivers measurable outcomes - Ownership, accountability, and calm under pressure I take on a limited number of engagements so I can go deep and drive real results. If you’re looking for a hands-on CTO, a practical AI architect, or a senior engineer who understands the business as well as the code, send me a message and tell me what you’re building.
Associated with
Serene Labs
Abdul Rehman S.
$40/hr
100% Job Success
Available now
Offers consultations
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I build production AI agents and RAG-powered SaaS that automate document, email, research, and decision workflows—backed by $600K+ earned and 100+ delivered projects. WHAT I BUILD 🔹 AI Agents & Multi-Agent Systems — autonomous agents with CrewAI and LangGraph, including a fully autonomous AI stock trading agent and workflow automation for B2B teams. 🔹 RAG & Retrieval Pipelines — retrieval systems with vector databases and LangChain that give LLMs accurate, grounded answers over your own data. 🔹 AI Chatbots & Assistants — customer onboarding bots, AI email assistants, and voice-AI apps built on OpenAI, Claude, Gemini, and LLaMA. 🔹 AI-Powered SaaS, End to End — the complete product around the AI: FastAPI/Django backends, Next.js/React frontends, PostgreSQL, and cloud deployment. HOW I DELIVER I personally lead architecture, AI workflow design, and client communication on every engagement. When a project needs additional frontend, QA, or DevOps capacity, I disclose it before kickoff and define exactly who delivers each workstream — you always know who is doing the work. Every build starts with a short discovery phase, then staged milestones with written acceptance criteria and regular progress updates, so you always know what's done, what's next, and what "finished" means. BEST FIT FOR Startups building their first AI product, SaaS companies adding AI features, and businesses replacing manual workflows with agent automation. Send me a message describing your workflow — I'll help you identify what can be automated, estimate the effort, and recommend the simplest solution that delivers real business value.
Zweidevs (Private) Limited
Associated with
Zweidevs (Private) Limited
Zoreslava H.
$20/hr
99% Job Success
$3K+ earned
Available now
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Zoreslava H. has worked .
Greetings!☀️ 🔥 True expert in QA. 🎯 8+ years of experience, manual, automating, and refining software end-to-end. 🚀 I help startups and established teams release with confidence by ensuring quality at every stage from the initial idea to production launch. 👩‍💻 On a mission to make software products bug-free and simplify developers’ lives by helping them clearly reproduce and resolve issues. I'm an experienced QA Lead with over 8 years of testing web and mobile applications across industries such as Fintech, Healthcare, Logistics, Media, and Public Services. I specialize in manual and automation testing, performance testing, API testing, and setting up robust QA processes from scratch. I’ve successfully led QA teams, developed high-level test documentation, and ensured that software meets the highest quality standards — all while aligning with fast-paced development cycles and product goals. What I Do: 🔹 Testing Types Covered: • Functional, Regression, System, Smoke, Exploratory sessions • API Testing (Postman, Swagger) • Performance & Load Testing (JMeter) • Cross-browser & Cross-platform Testing • Black Box and BDD Testing • Mobile Testing (iOS & Android – real devices & emulators) 🔹 Deliverables I Provide: • Test Plans & Test Strategies • Test Cases & Checklists • Bug Reports with Severity/Priority • Release Sign-off Reports • Test Summary Reports • Risk Assessment & QA Process Improvements 🛠 Tools & Technologies I Use: • Test Management: Jira, Zephyr, TestRail, Xray, Asana, Trello, Zendesk • Bug Tracking & Reporting: Jira, ClickUp • API Testing: Postman, Swagger • Performance Testing: JMeter • Cloud & Device Testing: BrowserStack, AWS, Azure • Databases: SQL, MySQL, PostgreSQL • Collaboration: Confluence, Slack, Notion, Google Workspace, Teams I focus on delivering reliable, high-quality software quickly and with strong attention to detail. I take a structured approach to QA, helping catch issues early and keeping clients informed throughout the process. 📩 Let’s Connect: If you’re looking for a QA engineer with strong experience in manual and automated testing, I’m ready to help ensure high software quality and a great user experience in your next project.
QUARTE
Associated with
QUARTE
$100K+
earned